Diving mask



FIG. 1 is a front perspective view of a diving mask in accordance with my new design; shown in a position of use with a head strap and breathing apparatus (both drawn in broken lines);

FIG. 2 is a rear perspective viev of the diving mask of FIG. 1 shown with the head strap and breathing apparatus removed;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof, the opposite left side view being a mirror image thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in FIG. 1 illustrating a head strap and breathing apparatus depict environment and form no part of the claimed design. All other broken lines in the drawings depict portions of the diving mask that form no part of the claimed design. 

CLAIM The ornamental design for a diving mask, as shown and described. 